公开(公告)号：US20250022414A1

公开(公告)日：2025-01-16

申请号：US18642923

申请日：2024-04-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hwa Hyun Cho ,  Yoonho Ko ,  Hyunwook Lim

IPC: G09G3/3225 ,  G09G3/00 ,  G09G3/32

Abstract: A display device according to an embodiment may include: a plurality of first display pixels disposed in a first region of a substrate; a plurality of image sensing pixels that are disposed in a second region positioned at the periphery of the first region of the substrate, and generate pixel signals; and a driving circuit that is disposed on the substrate, generates a plurality of first data signals based on input image data, provides the plurality of first data signals to the plurality of first display pixels, receives the pixel signal from the plurality of image sensing pixels, and generates image data corresponding to the user's gaze based on the pixel signal.

公开(公告)号：US12067201B2

公开(公告)日：2024-08-20

申请号：US18200402

申请日：2023-05-22

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Junchul Park ,  Jonghee Na ,  Gwangho Nam ,  Taekon Yu ,  Hyunwook Lim ,  Woohyuk Jang ,  Bumsoo Kim ,  Byunghwee Park ,  Wongab Jung ,  Yoon-Kyung Choi

IPC: G06F3/044 ,  G06F3/041 ,  G09G3/3233

CPC classification number: G06F3/0445 ,  G06F3/0412 ,  G06F3/04164 ,  G06F3/04166 ,  G06F3/0418 ,  G06F3/0446 ,  G09G3/3233 ,  G09G2320/0223 ,  G09G2320/0295 ,  G09G2354/00

Abstract: A touch sensor controller for driving a touch sensor that is stacked on a display panel and includes driving electrodes and receiving electrodes crossing the driving electrodes, the touch sensor controller including: a driving circuit configured to sequentially provide driving signals to the driving electrodes; a read-out circuit configured to, in response to the driving signals, generate touch data based on first sensing signals received from the receiving electrodes and generate display noise data based on a second sensing signal received from a first driving electrode to which a driving signal of the driving signals is not applied from among the driving electrodes; and a touch processor configured to determine whether a touch input has occurred on the touch sensor based on the touch data and the display noise data.

公开(公告)号：US11996065B2

公开(公告)日：2024-05-28

申请号：US17985599

申请日：2022-11-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kyungho Ryu ,  Kyongho Kim ,  Yongyun Park ,  Kilhoon Lee ,  Yeongcheol Rhee ,  Taeho Lee ,  Hyunwook Lim

IPC: G09G5/00

CPC classification number: G09G5/008 ,  G09G2370/04

Abstract: Provided is a display driving circuit. The display driving circuit includes a clock data recovery circuit configured to receive a data signal and generate a clock signal and a first output data signal, an eye margin test circuit configured to sample the data signal by using the clock signal, based on a vertical measurement voltage and generate a second output data signal, and a bit error check circuit configured to measure a bit error rate of the data signal, based on the first output data signal and the second output data signal, wherein the clock data recovery circuit includes a jitter generator configured to generate jitter of the clock signal such that a jitter amplitude varies according to a horizontal control signal.

公开(公告)号：US11810535B2

公开(公告)日：2023-11-07

申请号：US17393691

申请日：2021-08-04

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Taewoo Kim ,  Hongki Kwon ,  Jaehun Kim ,  Jinyong Park ,  Jaeyoul Lee ,  Hyunwook Lim ,  Woohyuk Jang ,  Hojun Chung

IPC: G09G5/393 ,  G06T5/00 ,  G06T5/50

CPC classification number: G09G5/393 ,  G06T5/003 ,  G06T5/50 ,  G06T2207/20201 ,  G09G2310/0297 ,  G09G2320/0261 ,  G09G2320/106 ,  G09G2340/02 ,  G09G2360/18

Abstract: A display driver circuit includes a receiver that receives a still image or a moving image, a frame buffer that stores the still image received by the receiver in a still image mode, an image processor that performs an image enhancement operation on the moving image transferred from the receiver or the still image transferred from the frame buffer, and a motion processor that performs a motion compensation operation using a current frame output from the image processor and a previous frame stored in the frame buffer in a moving image mode. The previous frame is data which, in the moving image mode, are processed by the image processor before the current frame and are then stored in the frame buffer. The previous frame is output from the frame buffer to the motion processor in synchronization with the current frame.

公开(公告)号：US11769434B2

公开(公告)日：2023-09-26

申请号：US17412965

申请日：2021-08-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jinyong Park ,  Hongki Kwon ,  Taewoo Kim ,  Yonghoon Yu ,  Hyunwook Lim ,  Byeongcheol Jang ,  Woohyuk Jang ,  Hojun Chung

IPC: G09G3/20 ,  G06T1/60 ,  G06T1/20 ,  G06T9/00

CPC classification number: G09G3/20 ,  G06T1/20 ,  G06T1/60 ,  G06T9/00 ,  G09G2310/0275 ,  G09G2310/0291 ,  G09G2330/021 ,  G09G2340/02

Abstract: A display driver circuit receives externally-encoded image data and processes the data using a memory (graphic RAM), an internal encoder, and an external decoder configured to operate on the externally-encoded image data. The processed data is provided to a display device by a source driver of the display driver circuit. Data is processed through the graphic RAM and an internal decoder or the external decoder depending on whether a slice of the data is a currently received update slice, a recently received standby slice, or a still slice.

公开(公告)号：US11908364B2

公开(公告)日：2024-02-20

申请号：US17462646

申请日：2021-08-31

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byeongcheol Jang ,  Yonghoon Yu ,  Hongki Kwon ,  Taewoo Kim ,  Jinyong Park ,  Hyunwook Lim ,  Woohyuk Jang ,  Hojun Chung

IPC: H04N19/00 ,  G09G3/20 ,  G09G5/00

CPC classification number: G09G3/20 ,  G09G5/003 ,  G09G2320/103 ,  G09G2330/021 ,  G09G2340/02 ,  G09G2360/12 ,  G09G2370/08

Abstract: Provided are a low-power display driving circuit performing internal encoding and decoding and an operating method thereof. The display driving circuit includes a memory configured to store an input bit stream encoded by an encoder and a controller configured to determine a data path through which output frame data in a second frame period passes according to whether internal encoding is successful in a first frame period, wherein, when the internal encoding is successful, the controller performs internal encoding in the second frame period, stores a generated internal bit stream in the memory, allows the internal bit stream to pass through a low-power path to generate the output frame data, and when the internal encoding fails, the controller generates the output frame data by allowing the input bit stream to pass through a normal path in the second frame period, changes an encoding setting of an internal encoder, and repeats the internal encoding.

公开(公告)号：US11658853B2

公开(公告)日：2023-05-23

申请号：US17680583

申请日：2022-02-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Younghwan Chang ,  Eun-Young Jin ,  Youngseo Kim ,  Kilhoon Lee ,  Hyunwook Lim ,  Seng-Sub Chun

IPC: H04L27/01 ,  H04B17/21

CPC classification number: H04L27/01 ,  H04B17/21

Abstract: An operation method of a receiver, which includes setting a coefficient of an equalizer based on one of a plurality of first codes, setting a coefficient of an amplifier based on one of a plurality of second codes, performing offset calibration by driving the equalizer and the amplifier based on the coefficient of the equalizer and the coefficient of the amplifier, storing an offset code corresponding to a voltage offset generated when the equalizer and the amplifier are driven, determining whether the offset calibration is completed, performing a normal operation of obtaining reception data from an input signal, in response to determining that the offset calibration is completed, and removing the voltage offset based on the offset code, in the normal operation.

公开(公告)号：US11574612B2

公开(公告)日：2023-02-07

申请号：US17212286

申请日：2021-03-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Unki Park ,  Se Whan Na ,  Hyunwook Lim ,  Woohyuk Jang

IPC: G09G5/02 ,  G09G5/10 ,  H04N5/225

Abstract: An electronic device includes a display panel that includes a first region including first pixel groups and a second region including second pixel groups, and a compensation circuit. The compensation circuit may receive first image data. The compensation circuit may compensate to generate second image data in response to a determination that the first image data corresponds to at least one of one or more particular first pixel groups that are adjacent to a boundary between the first region and the second region or one or more particular second pixel groups that are adjacent to the boundary. The compensation circuit outputs the second image data to the display panel.

公开(公告)号：US20210319770A1

公开(公告)日：2021-10-14

申请号：US17221461

申请日：2021-04-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Unki Park ,  Minsik Kim ,  Hyeonsu Park ,  Jonghyuk Lee ,  Hyunwook Lim ,  Woohyuk Jang

IPC: G09G5/393 ,  G09G5/395 ,  G04G9/00

Abstract: A display driving circuit for driving a display panel, including a first memory configured to store main image data received from outside of the display driving circuit; a second memory configured to store first additional image data in a normal mode, and to store second additional image data in an Always On Display (AOD) mode having lower power consumption than the normal mode; a normal mode controller configured to operate in the normal mode according to the first additional image data stored in the second memory; and an AOD mode controller configured to operate in the AOD mode according to the main image data stored in the first memory and the second additional image data stored in the second memory.

公开(公告)号：US11138937B2

公开(公告)日：2021-10-05

申请号：US16829244

申请日：2020-03-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Unki Park ,  Minsik Kim ,  Hyeonsu Park ,  Hyunwook Lim ,  Woohyuk Jang

IPC: G09G3/3258

Abstract: A display driving circuit for driving a display panel includes a control logic that adjusts brightness of a first partial area by adjusting pixel data values included in partial image data to be displayed on the first partial area of the display panel based on received brightness control information, and a data driver that generates image signals by digital-analog conversion of pixel data values provided from the control logic, the data driver providing the image signals to the display panel.